Investment in U.S. financial markets is a major driver of long‑term economic growth, but the tax treatment of investment funds can distort after‑tax returns and influence how Americans allocate savings. The Generating Retirement Ownership Through Long‑Term Holding (GROWTH) Act, introduced by Sen. John Cornyn and Rep. Beth Van Duyne, would align the tax treatment of mutual funds with that of exchange‑traded funds (ETFs) by allowing investors to defer tax on qualifying reinvested capital‑gains distributions until the fund shares are sold.
How current tax rules differ for mutual funds and ETFs
- Mutual funds – When a shareholder redeems shares, the fund may have to sell underlying securities. Any realized capital gain is distributed to shareholders and taxed in the year of distribution, even for investors who did not sell any shares.
- ETFs – Retail investors sell shares on secondary markets. Authorized participants can redeem large blocks of ETF shares “in‑kind,” receiving the underlying securities instead of cash. This in‑kind redemption does not trigger a capital‑gain realization, so remaining shareholders avoid a taxable distribution.
Because of these mechanics, two investors holding virtually identical portfolios can face different current tax liabilities solely based on the fund structure. Empirical research shows that average capital‑gain distributions are markedly higher for mutual funds than for ETFs.
Key provisions of the GROWTH Act
- Deferral of qualifying reinvested capital gains – Tax on such gains would be postponed until the investor sells the fund shares.
- Dividend and interest income – Remain taxable under existing rules.
The proposal therefore narrows the timing gap in capital‑gain taxation between mutual‑fund and ETF shareholders.
Revenue and fiscal impact
- Estimated federal revenue loss: $37.7 billion over 2027‑2036 (conventional basis).
- The cost is front‑loaded because previously taxable reinvested gains become deferred; as those gains are later realized, the annual loss declines to just above $1 billion per year in the later budget window.
- Long‑run revenue cost may be slightly lower than the conventional estimate because deferred gains can compound and become taxable later—a factor not captured in the baseline model.
Distributional effects
- Average increase in after‑tax income of 0.1 % in 2027, tapering to <0.05 % by 2036 across all income groups.
- The change is modest and roughly uniform across the income spectrum.
Economic considerations
- Neutrality – By equalizing tax timing, investors can choose between mutual funds and ETFs based on economic merits rather than tax advantages.
- Potential “lock‑in” effect – Deferring capital‑gain tax may encourage investors to hold assets longer to avoid taxation, possibly slowing the reallocation of capital to more productive uses.
- Step‑up in basis limitation – The Act would restrict the ability to avoid tax entirely through a step‑up in basis at death, preserving that incentive for heirs.
- Impact on GDP/GNP – Higher after‑tax returns could boost long‑run gross national product, but the net effect depends on how the revenue loss is financed (e.g., additional borrowing could increase debt service payments to foreign investors, offsetting some gains).
Overall assessment
The GROWTH Act offers a targeted improvement in tax code neutrality by reducing the disparity between mutual‑fund and ETF shareholders. While the fiscal cost is measurable, it is relatively modest and front‑loaded. The proposal does introduce a modest lock‑in incentive and limits certain estate‑tax planning strategies, but these trade‑offs are balanced against the benefit of a more level playing field for investors. Larger, comprehensive reforms to the taxation of saving and investment would be needed to eliminate broader distortions, but the GROWTH Act represents a concrete step toward that goal.
Source article: taxfoundation.org
